Audi A4 Service Bulletins (2021)

1,057 manufacturer communications on file.

• January 13, 2026•Document ID: 11028405

  Service Bulletin/Repair Instructions
  STEERING

  Mfr Comm. #:

  TSB_2074846_4

  Date Added:

  February 6, 2026

  Manufacturer:

  AUDI

  Summary

  This bulletin provides information about vibrations and rotational steering vibrations.

  Associated Products (400)

  2026 Audi A32026 Audi A52026 Audi A62026 Audi A6 allroad2026 Audi A82026 Audi Q42026 Audi Q52026 Audi Q72026 Audi Q82026 Audi RS 32026 Audi RS 6 Avant2026 Audi RS 72026 Audi RS e-tron GT2026 Audi RS Q82026 Audi S32026 Audi S52026 Audi S82026 Audi S e-tron GT2026 Audi SQ52026 Audi SQ7+ 380 more
  Associated Documents

  • DownloadMC-11028405-0001.pdf↗
• January 5, 2026•Document ID: 11028397

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  TSB_2056019_5

  Date Added:

  February 6, 2026

  Manufacturer:

  AUDI

  Summary

  This bulletin provides information when the anti-theft alarm activates for no reason, or does not activate.

  Associated Products (387)

  2026 Audi A32026 Audi A52026 Audi A62026 Audi A6 allroad2026 Audi A82026 Audi Q42026 Audi Q52026 Audi Q72026 Audi Q82026 Audi RS 32026 Audi RS 6 Avant2026 Audi RS 72026 Audi RS e-tron GT2026 Audi RS Q82026 Audi S32026 Audi S52026 Audi S82026 Audi S e-tron GT2026 Audi SQ52026 Audi SQ7+ 367 more
  Associated Documents

  • DownloadMC-11028397-0001.pdf↗
• December 19, 2025•Document ID: 11027441

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  TSB_2080517_1

  Date Added:

  January 7, 2026

  Manufacturer:

  AUDI

  Summary

  This bulletin provides informaiotn when the starter battery is discharged or defective.

  Associated Products (324)

  2026 Audi A32026 Audi A52026 Audi A62026 Audi A6 allroad2026 Audi A82026 Audi Q42026 Audi Q52026 Audi Q72026 Audi Q82026 Audi RS 32026 Audi RS 6 Avant2026 Audi RS 72026 Audi RS e-tron GT2026 Audi RS Q82026 Audi S32026 Audi S52026 Audi S82026 Audi S e-tron GT2026 Audi SQ52026 Audi SQ7+ 304 more
  Associated Documents

  • DownloadMC-11027441-0001.pdf↗
• December 19, 2025•Document ID: 11027439

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  TSB_2080494_1

  Date Added:

  January 7, 2026

  Manufacturer:

  AUDI

  Summary

  This bulletin provides service information when there is dirt or a small amount of oil residue on the engine mounting.

  Associated Products (145)

  2026 Audi A6 allroad2026 Audi A82026 Audi Q72026 Audi Q82026 Audi RS 6 Avant2026 Audi RS 72026 Audi RS Q82026 Audi S82026 Audi SQ72026 Audi SQ82025 Audi A42025 Audi A4 allroad2025 Audi A52025 Audi A62025 Audi A6 allroad2025 Audi A72025 Audi A82025 Audi Q52025 Audi Q5 e2025 Audi Q7+ 125 more
  Associated Documents

  • DownloadMC-11027439-0001.pdf↗
• December 19, 2025•Document ID: 11027438

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  TSB_2061669_3

  Date Added:

  January 7, 2026

  Manufacturer:

  AUDI

  Summary

  This bulletin provides service infrmation for workshop mode with Audi connect vehicles.

  Associated Products (343)

  2026 Audi A32026 Audi A52026 Audi A62026 Audi A6 allroad2026 Audi A82026 Audi Q42026 Audi Q52026 Audi Q72026 Audi Q82026 Audi RS 32026 Audi RS 6 Avant2026 Audi RS 72026 Audi RS e-tron GT2026 Audi RS Q82026 Audi S32026 Audi S52026 Audi S82026 Audi S e-tron GT2026 Audi SQ52026 Audi SQ7+ 323 more
  Associated Documents

  • DownloadMC-11027438-0001.pdf↗
• December 19, 2025•Document ID: 11027436

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  TSB_2077148_2

  Date Added:

  January 7, 2026

  Manufacturer:

  AUDI

  Summary

  This bulletin provides informaotin when the home address, work address, and favorites are deleted invehicles with MIB3.

  Associated Products (217)

  2026 Audi A32026 Audi A52026 Audi A62026 Audi A6 allroad2026 Audi A82026 Audi Q42026 Audi Q52026 Audi Q72026 Audi Q82026 Audi RS 32026 Audi RS 6 Avant2026 Audi RS 72026 Audi RS e-tron GT2026 Audi RS Q82026 Audi S32026 Audi S52026 Audi S82026 Audi S e-tron GT2026 Audi SQ52026 Audi SQ7+ 197 more
  Associated Documents

  • DownloadMC-11027436-0001.pdf↗
• December 19, 2025•Document ID: 11027372

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  TSB_2077443_2

  Date Added:

  January 7, 2026

  Manufacturer:

  AUDI

  Summary

  This bulletin provides informatin when the convenience opening does not work.

  Associated Products (158)

  2026 Audi A32026 Audi Q52026 Audi RS 32026 Audi S32026 Audi SQ52025 Audi A32025 Audi A42025 Audi A4 allroad2025 Audi A52025 Audi A62025 Audi A6 allroad2025 Audi A72025 Audi A82025 Audi Q42025 Audi Q52025 Audi Q5 e2025 Audi Q62025 Audi Q72025 Audi Q82025 Audi RS 3+ 138 more
  Associated Documents

  • DownloadMC-11027372-0001.pdf↗
• December 16, 2025•Document ID: 11027376

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  TSB_2079133_3

  Date Added:

  January 7, 2026

  Manufacturer:

  AUDI

  Summary

  This bulletin provides a osftware update for vehicles with MIB3, NAR Version ST37+LSR).

  Associated Products (88)

  2024 Audi Q32024 Audi Q82024 Audi SQ82023 Audi A42023 Audi A4 allroad2023 Audi A52023 Audi A62023 Audi A6 allroad2023 Audi A72023 Audi A82023 Audi e-tron2023 Audi e-tron Sportback2023 Audi Q32023 Audi Q52023 Audi Q5 e2023 Audi Q72023 Audi Q82023 Audi RS 52023 Audi RS 6 Avant2023 Audi RS 7+ 68 more
  Associated Documents

  • DownloadMC-11027376-0001.pdf↗
• December 16, 2025•Document ID: 11027373

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  TSB_2021205_9

  Date Added:

  January 7, 2026

  Manufacturer:

  AUDI

  Summary

  This bulletin provides information on VIN Plates, Safety Certification labels, and the ordering procedures.

  Associated Products (386)

  2027 Audi A62027 Audi Q62027 Audi S62027 Audi SQ62026 Audi A32026 Audi A62026 Audi A82026 Audi Q42026 Audi Q72026 Audi Q82026 Audi RS 32026 Audi RS 6 Avant2026 Audi RS 72026 Audi RS e-tron GT2026 Audi RS Q82026 Audi S32026 Audi S82026 Audi S e-tron GT2026 Audi SQ72026 Audi SQ8+ 366 more
  Associated Documents

  • DownloadMC-11027373-0001.pdf↗
• December 11, 2025•Document ID: 11027368

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  TSB_2079652_2

  Date Added:

  January 7, 2026

  Manufacturer:

  AUDI

  Summary

  This bulletin provides information when the Emergency call LED in the roof module is not lit up green.

  Associated Products (297)

  2026 Audi A32026 Audi A6 allroad2026 Audi A82026 Audi e-tron GT2026 Audi Q42026 Audi Q72026 Audi Q82026 Audi RS 32026 Audi RS 6 Avant2026 Audi RS 72026 Audi RS e-tron GT2026 Audi RS Q82026 Audi S32026 Audi S82026 Audi SQ72026 Audi SQ82025 Audi A32025 Audi A42025 Audi A4 allroad2025 Audi A5+ 277 more
  Associated Documents

  • DownloadMC-11027368-0001.pdf↗
• December 11, 2025•Document ID: 11027366

  Service Bulletin/Repair Instructions
  FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  TSB_2079461_3

  Date Added:

  January 7, 2026

  Manufacturer:

  AUDI

  Summary

  This bulletin provides information when the DTC P014800 or P008700 stored in ECM; Fuel System.

  Associated Products (129)

  2025 Audi A42025 Audi A4 allroad2025 Audi A52025 Audi A62025 Audi A6 allroad2025 Audi A72025 Audi Q52025 Audi Q5 e2025 Audi Q72025 Audi Q82025 Audi RS 52025 Audi RS 6 Avant2025 Audi RS 72025 Audi RS Q82025 Audi S42025 Audi S52025 Audi S62025 Audi S72025 Audi SQ52025 Audi SQ7+ 109 more
  Associated Documents

  • DownloadMC-11027366-0001.pdf↗
• December 11, 2025•Document ID: 11027358

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  TSB_2074808_3

  Date Added:

  January 7, 2026

  Manufacturer:

  AUDI

  Summary

  This bulletin provides additoinal information to assist in determining the energy content of lithium-ion high-voltage batteries.

  Associated Products (308)

  2024 Audi A32024 Audi A42024 Audi A4 allroad2024 Audi A52024 Audi A62024 Audi A6 allroad2024 Audi A72024 Audi A82024 Audi e-tron GT2024 Audi Q32024 Audi Q42024 Audi Q52024 Audi Q5 e2024 Audi Q72024 Audi Q82024 Audi RS 32024 Audi RS 52024 Audi RS 6 Avant2024 Audi RS 72024 Audi RS e-tron GT+ 288 more
  Associated Documents

  • DownloadMC-11027358-0001.pdf↗
• December 11, 2025•Document ID: 11027356

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  TSB_2074640_2

  Date Added:

  January 7, 2026

  Manufacturer:

  AUDI

  Summary

  This bulletin provides information when there is increased oil consumption; >0.5ltr/1000 km.

  Associated Products (319)

  2026 Audi A32026 Audi A62026 Audi A82026 Audi Q42026 Audi Q72026 Audi Q82026 Audi RS 32026 Audi RS 6 Avant2026 Audi RS 72026 Audi RS e-tron GT2026 Audi RS Q82026 Audi S32026 Audi S82026 Audi S e-tron GT2026 Audi SQ72026 Audi SQ82025 Audi A32025 Audi A42025 Audi A4 allroad2025 Audi A5+ 299 more
  Associated Documents

  • DownloadMC-11027356-0001.pdf↗
• December 11, 2025•Document ID: 11027350

  Service Bulletin/Repair Instructions
  STEERING

  Mfr Comm. #:

  TSB_2028220_13

  Date Added:

  January 7, 2026

  Manufacturer:

  AUDI

  Summary

  This bulletin provides regarding visual damage for all vehicles.

  Associated Products (323)

  2027 Audi A62027 Audi Q62027 Audi S62027 Audi SQ62026 Audi A32026 Audi A62026 Audi A82026 Audi Q42026 Audi Q72026 Audi Q82026 Audi RS 32026 Audi RS 6 Avant2026 Audi RS 72026 Audi RS e-tron GT2026 Audi RS Q82026 Audi S32026 Audi S82026 Audi S e-tron GT2026 Audi SQ72026 Audi SQ8+ 303 more
  Associated Documents

  • DownloadMC-11027350-0001.pdf↗
• December 9, 2025•Document ID: 11027323

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  TSB_2064983_13

  Date Added:

  January 7, 2026

  Manufacturer:

  AUDI

  Summary

  This bulletin procides information when there is a pixel error in the Audi virtual cockpit.

  Associated Products (142)

  2025 Audi A32025 Audi A42025 Audi A4 allroad2025 Audi A52025 Audi A62025 Audi A6 allroad2025 Audi A72025 Audi A82025 Audi Q32025 Audi Q52025 Audi Q5 e2025 Audi Q72025 Audi Q82025 Audi RS 32025 Audi RS 52025 Audi RS 6 Avant2025 Audi RS 72025 Audi RS Q82025 Audi S32025 Audi S4+ 122 more
  Associated Documents

  • DownloadMC-11027323-0001.pdf↗
• December 9, 2025•Document ID: 11027321

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  TSB_2018187_18

  Date Added:

  January 7, 2026

  Manufacturer:

  AUDI

  Summary

  This bulletin provides information when there are speaker rattles, vibrations, or audio interference.

  Associated Products (395)

  2026 Audi A32026 Audi A62026 Audi A82026 Audi Q42026 Audi Q72026 Audi Q82026 Audi RS 32026 Audi RS 6 Avant2026 Audi RS 72026 Audi RS e-tron GT2026 Audi RS Q82026 Audi S32026 Audi S82026 Audi S e-tron GT2026 Audi SQ72026 Audi SQ82025 Audi A32025 Audi A42025 Audi A4 allroad2025 Audi A5+ 375 more
  Associated Documents

  • DownloadMC-11027321-0001.pdf↗
• November 25, 2025•Document ID: 11026208

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  TSB_2059528_17

  Date Added:

  December 5, 2025

  Manufacturer:

  AUDI

  Summary

  This TSB provides information when the Emergency call SOS light has a fault, LED red; DTC B200000.

  Associated Products (136)

  2025 Audi A42025 Audi A4 allroad2025 Audi A52025 Audi A62025 Audi A6 allroad2025 Audi A72025 Audi A82025 Audi e-tron GT2025 Audi Q52025 Audi Q5 e2025 Audi Q72025 Audi Q82025 Audi RS 52025 Audi RS 6 Avant2025 Audi RS 72025 Audi RS Q82025 Audi S42025 Audi S52025 Audi S62025 Audi S7+ 116 more
  Associated Documents

  • DownloadMC-11026208-0001.pdf↗
• November 25, 2025•Document ID: 11026206

  Other
  ENGINE

  Mfr Comm. #:

  SM 63-2025

  Date Added:

  December 5, 2025

  Manufacturer:

  AUDI

  Summary

  This special notice is to inform dealers to return the parts listed and only order the successor parts going forward.

  Associated Products (74)

  2026 Audi A42026 Audi A52026 Audi A62026 Audi A72026 Audi A82026 Audi Q52026 Audi Q72026 Audi Q82025 Audi A42025 Audi A52025 Audi A62025 Audi A72025 Audi A82025 Audi Q52025 Audi Q72025 Audi Q82024 Audi A42024 Audi A52024 Audi A62024 Audi A7+ 54 more
  Associated Documents

  • DownloadMC-11026206-0001.pdf↗
• November 19, 2025•Document ID: 11026228

  Service Bulletin/Repair Instructions
  FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  TSB_2079461_2

  Date Added:

  December 5, 2025

  Manufacturer:

  AUDI

  Summary

  This bulletin provides information when the DTC P014800 or P008700 stored in ECM; Fuel System.

  Associated Products (107)

  2025 Audi A42025 Audi A4 allroad2025 Audi A52025 Audi A62025 Audi A6 allroad2025 Audi A72025 Audi Q72025 Audi Q82025 Audi RS 52025 Audi RS 6 Avant2025 Audi RS 72025 Audi RS Q82025 Audi S42025 Audi S52025 Audi S62025 Audi S72025 Audi SQ72025 Audi SQ82024 Audi A42024 Audi A4 allroad+ 87 more
  Associated Documents

  • DownloadMC-11026228-0001.pdf↗
• November 19, 2025•Document ID: 11026211

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  TSB_2061461_15

  Date Added:

  December 5, 2025

  Manufacturer:

  AUDI

  Summary

  This bulletin provides information when the starter/generator drive belt is noisy or came off; 2.0 ltr. Inline 4-cyl. TFSI.

  Associated Products (38)

  2025 Audi A42025 Audi A4 allroad2025 Audi A62025 Audi Q52025 Audi Q5 e2024 Audi A42024 Audi A4 allroad2024 Audi A62024 Audi Q52024 Audi Q5 e2023 Audi A42023 Audi A4 allroad2023 Audi A52023 Audi A62023 Audi Q52023 Audi Q5 e2022 Audi A42022 Audi A4 allroad2022 Audi A52022 Audi A6+ 18 more
  Associated Documents

  • DownloadMC-11026211-0001.pdf↗